Circulating powdering system

Abstract

The utility model relates to a circulating powder feeding system. The circulating powder feeding system comprises a transverse recycling mechanism, a vertical recycling mechanism, a temporary storage box, a transverse powder feeding auger, a powder feeding pipe and a powder feeding motor. The transverse recovery mechanism is transversely inserted into the temporary storage box; the vertical recycling mechanism is vertically inserted into the bottom of the temporary storage box; the powdering motor is mounted on the left side of the powder distribution box and is in driving connection with the powdering auger; the powder feeding pipe is transversely and fixedly connected with the powder distribution box and is sleeved outside the powder feeding auger; a powder inlet extending leftwards from the midpoint of the powder feeding pipe is formed in the bottom of the powder feeding pipe. According to the utility model, the edge of the powder inlet is arranged at the edge of the powder feeding pipe, so that the printing powder conveyed by the powder feeding auger can fall to the midpoint of the powder distribution box; printing powder entering the powder distribution box is piled up and spread towards the left side and the right side step by step, and the purpose of uniform powder distribution is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder shaking machine accessories, in particular to a circulating powder feeding system. Background Art

[0002] The circulating powder feeding system is a conveying system in the powder shaking machine that conveys the printing powder at the bottom of the powder shaking box to the powder distributing box. In the prior art, a set of recycling components disclosed in the patent application of a circulating powder shaking device with the application publication number of CN115570897A is a set of circulating powder feeding system. The recycling components include a horizontal recycling mechanism, a vertical recycling mechanism, and a temporary storage box; the horizontal recycling mechanism horizontally conveys all the printing powder that has fallen to the bottom of the powder shaking box to the temporary storage box; the printing powder conveyed to the temporary storage box slides down to the vertical recycling mechanism by using a sliding inclined plane; the vertical recycling mechanism vertically lifts the printing powder to a high place by using a spiral lifting rod, and then enters one end of the powder distributing box by using an inlet inclined plane. However, this recycling component can only convey the printing powder to the end of the powder distributing box, which is likely to cause the concentration of the printing powder, making it difficult for the printing powder to be evenly discharged from the powder discharging port. Although the circulating powder shaking device is provided with a spiral powder spreading rod in the powder distributing box in order to evenly spread the printing powder concentrated at the end of the powder distributing box along the length direction of the powder distributing box, it is still difficult to avoid the situation that the closer to the inlet inclined plane, the greater the amount of printing powder, which is not conducive to the uniform powder distribution of the powder distributing box. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the above problems and provide a circulating powder feeding system.

[0004] The technical solution of the utility model is: a circulating powder feeding system includes a horizontal recycling mechanism, a vertical recycling mechanism, and a temporary storage box; the horizontal recycling mechanism is horizontally inserted into the temporary storage box; the horizontal recycling mechanism is installed at the bottom of the powder shaking box and is used to recycle the printing powder at the bottom of the powder shaking box to the temporary storage box; the vertical recycling mechanism is vertically inserted into the bottom of the temporary storage box and is used to vertically lift the printing powder at the bottom of the temporary storage box to the height where the powder distributing box is located, causing the circulating recycling of the printing powder; the circulating powder feeding system further includes a horizontal powder feeding auger, a powder feeding pipe, and a powder feeding motor; the powder feeding motor is installed on the left side of the powder distributing box and is drivingly connected to the powder feeding auger; the powder feeding motor outputs torque to drive the powder feeding auger to rotate; the powder feeding pipe is horizontally fixed to the powder distributing box and is sleeved outside the powder feeding auger; an inlet for powder is provided at the bottom of the powder feeding pipe and extends leftward from the midpoint position of the powder feeding pipe; the powder feeding auger conveys the printing powder lifted to the height where the powder distributing box is located along the powder feeding pipe and enters the powder distributing box from the edge of the inlet for powder; the edge of the inlet for powder is located at the midpoint position of the powder feeding pipe; the printing powder entering the powder distributing box piles up and gradually spreads to the left and right sides to achieve the purpose of uniform powder distribution.

[0005] Preferably, the vertical recycling mechanism includes a vertical pipe, a vertical auger cooperating with the vertical pipe, and a motor A for driving the vertical auger; the lower end of the vertical pipe is inserted into the temporary storage box and is rotatably connected to the bottom of the temporary storage box in a sealed manner; the lower end of the vertical pipe is provided with a powder inlet cooperating with the horizontal recycling mechanism; the motor A outputs torque to drive the vertical auger to rotate; the printing powder enters the bottom of the vertical pipe from the powder inlet; the rotating vertical auger lifts the printing powder in the temporary storage box upward to reach the height where the powder distribution box is located.

[0006] Further, a horizontal pipe is connected to the upper end of the vertical pipe; the horizontal pipe is connected to the powder feeding pipe; the right end of the powder feeding auger extends beyond the end of the powder feeding pipe and enters the horizontal pipe; the printing powder lifted to the height where the powder distribution box is located enters the horizontal pipe and is driven by the powder feeding auger to be conveyed along the powder feeding pipe.

[0007] Further, the circulating powder feeding system further includes a PVC steel wire hose; the PVC steel wire hose connects the horizontal pipe and the powder feeding pipe to compensate for the position error between the horizontal pipe and the powder feeding pipe.

[0008] Further, a centrifugal impeller is coaxially and fixedly connected to the upper end of the vertical auger; the centrifugal impeller includes a plurality of blades distributed in a circumferential manner; the blades are arranged radially along the vertical auger; when the vertical auger rotates, the centrifugal impeller also rotates; the centrifugal impeller rotates to throw the printing powder lifted to the top of the vertical auger into the horizontal pipe for the conveyance by the powder feeding auger.

[0009] Further, the horizontal recycling mechanism includes a recycling trough, a horizontal auger, and a motor B for driving the horizontal auger; the horizontal auger is horizontally arranged at the bottom of the recycling trough; the motor B outputs torque to drive the horizontal auger to rotate; the recycling trough is used to receive the printing powder falling to the bottom of the powder shaking box; the rotating horizontal auger conveys the printing powder to the temporary storage box.

[0010] Further, the horizontal recycling mechanism further includes a horizontally arranged U-shaped seat, a sealed bearing A, and a sealed bearing B; the motor B is installed at the left end of the recycling trough; the right end of the horizontal auger passes through the right end of the recycling trough; the U-shaped seat is horizontally installed at the right end of the recycling trough; the sealed bearing A is installed at the left end of the recycling trough and is rotatably connected to the horizontal auger; the sealed bearing B is installed at the closed end of the U-shaped seat and is rotatably connected to the horizontal auger; the sealed bearing A and the sealed bearing B ensure the sealing performance of the rotation of the horizontal auger and also reduce the resistance suffered by the rotation of the horizontal auger; the U-shaped seat enables the printing powder to be directly conveyed by the horizontal auger to the temporary storage box at the right end.

[0011] Further, the powder inlet is directly opposite to the right end of the recycling trough; a slope communicating the powder inlet with the right end of the recycling trough is provided inside the temporary storage box; the printing powder entering the temporary storage box automatically enters the powder inlet along the slope.

[0012] Preferably, the temporary storage box includes a side-opening shell and a main shell; the side-opening shell is provided with a hem; the side-opening shell is buckled on the side of the main shell through the hem and is connected to the main shell by screws; the temporary storage box is a side-opening structure; by opening the side-opening shell, the maintenance inside the temporary storage box can be carried out.

[0013] Furthermore, the powder inlet is in a door-shaped structure to facilitate the printing powder to enter the vertical pipe.

[0014] Furthermore, a chamfer is provided at the lower edge of the outer end of the blade, which can avoid the occurrence of powder jamming and ensure the continuity of the blade rotation.

[0015] The beneficial effects of the present utility model are as follows: The circulating powder feeding system of the present utility model has the following advantages:

[0016] (1) In the present utility model, the edge of the powder inlet is arranged on the edge of the powder feeding pipe, so that the printing powder conveyed by the powder feeding auger can fall to the midpoint position of the powder distribution box; the printing powder entering the powder distribution box piles up and gradually spreads to the left and right sides, achieving the purpose of uniform powder distribution.

[0017] (2) The centrifugal blade of the present utility model utilizes the centrifugal principle to throw the printing powder lifted to the top of the vertical auger into the horizontal pipe for the transportation of the powder feeding auger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional view of the circulating powder feeding system of the present utility model Figure 1 ;

[0019] Figure 2 is a three-dimensional view of the circulating powder feeding system of the present utility model Figure 2 ;

[0020] Figure 3 is Figure 1 a partial side view sectional view of

[0021] Figure 4 is Figure 3 an A-A sectional view of

[0022] Figure 5 is Figure 4 an enlarged view of I of

[0023] Figure 6 is Figure 4 an enlarged view of II of

[0024] Figure 7 is Figure 4 a B-B sectional view of

[0025] Figure 8 is Figure 7 an enlarged view of III of

[0026] Figure 9 is Figure 4 a C-C cross-sectional view of;

[0027] Figure 10 is a physical photo of the present utility model;

[0028] In the figure: 11. Recovery tank body, 12. Horizontal auger, 13. Motor B, 14. U-shaped seat, 15. Sealed bearing A, 16. Sealed bearing B, 17. Driving pulley B, 18. Driven pulley B, 19. Transmission belt B, 2. Vertical recovery mechanism, 21. Vertical pipe, 211. Powder inlet, 212. Horizontal pipe, 22. Vertical auger, 221. Blade, 2211. Chamfer, 23. Motor A, 24. Driving pulley A, 25. Driven pulley A, 26. Transmission belt A, 31. Slope, 32. Side-opening shell, 321. Flange, 33. Main shell, 4. Powder feeding auger, 5. Powder feeding pipe, 51. Powder inlet, 6. Powder feeding motor, 7. Driving gear, 8. Driven gear, 9. PVC steel wire hose. Specific implementation mode

[0029] Embodiment 1: Refer to Figures 1-9 , a circulating powder feeding system includes a horizontal recovery mechanism, a vertical recovery mechanism 2 and a temporary storage box; the horizontal recovery mechanism is horizontally inserted into the temporary storage box; the horizontal recovery mechanism is installed at the bottom of the powder shaking box for recovering the printing powder at the bottom of the powder shaking box into the temporary storage box; the vertical recovery mechanism 2 is vertically inserted into the bottom of the temporary storage box for vertically lifting the printing powder at the bottom of the temporary storage box to the height where the powder distribution box is located, causing the circulating recovery of the printing powder; the circulating powder feeding system further includes a horizontal powder feeding auger 4, a powder feeding pipe 5 and a powder feeding motor 6; the powder feeding motor 6 is installed on the left side of the powder distribution box and is drivingly connected with the powder feeding auger 4; the powder feeding motor 6 outputs torque to drive the powder feeding auger 4 to rotate; the powder feeding pipe 5 is horizontally fixed to the powder distribution box and is sleeved outside the powder feeding auger 4; the bottom of the powder feeding pipe 5 is provided with a powder inlet 51 extending leftward from the midpoint position of the powder feeding pipe 5; the powder feeding auger 4 conveys the printing powder lifted to the height where the powder distribution box is located along the powder feeding pipe 5 and enters the powder distribution box from the edge of the powder inlet 51; the edge of the powder inlet 51 is located at the midpoint position of the powder feeding pipe 5; the printing powder entering the powder distribution box piles up and gradually spreads to the left and right sides to achieve the purpose of uniform powder distribution.

[0030] Compared with the prior art, the present utility model sets the edge of the powder inlet 51 at the edge of the powder feeding pipe 5, so that the printing powder conveyed by the powder feeding auger 4 can fall to the midpoint position of the powder distribution box; the printing powder entering the powder distribution box piles up and gradually spreads to the left and right sides to achieve the purpose of uniform powder distribution.

[0031] The circulating powder feeding system further includes a driving gear 7 and a driven gear 8; the output shaft of the powder feeding motor 6 is coaxially and fixedly connected to the driving gear 7; the driving gear 7 meshes with the driven gear 8; the driven gear 8 is coaxially and fixedly connected to the powder feeding auger 4; the powder feeding motor 6 outputs torque to drive the driving gear 7 to rotate; the rotating driving gear 7 drives the driven gear 8 to rotate; the rotating driven gear 8 drives the powder feeding auger 4 to rotate.

[0032] The vertical recovery mechanism 2 includes a vertical pipe 21, a vertical auger 22 cooperating with the vertical pipe 21, and a motor A 23 for driving the vertical auger 22; the lower end of the vertical pipe 21 is inserted into the temporary storage box and is hermetically and rotatably connected to the bottom of the temporary storage box; the lower end of the vertical pipe 21 is provided with a powder inlet 211 for cooperating with the horizontal recovery mechanism; the motor A 23 outputs torque to drive the vertical auger 22 to rotate; the printing powder enters the bottom of the vertical pipe 21 from the powder inlet 211; the rotating vertical auger 22 lifts the printing powder in the temporary storage box upward to reach the height where the powder distribution box is located.

[0033] The upper end of the vertical pipe 21 is connected to a horizontal pipe 212; the horizontal pipe 212 is connected to the powder feeding pipe 5; the right end of the powder feeding auger 4 extends beyond the end of the powder feeding pipe 5 and enters the horizontal pipe 212; the printing powder lifted to the height where the powder distribution box is located enters the horizontal pipe 212 and is driven by the powder feeding auger 4 to be conveyed along the powder feeding pipe 5.

[0034] The vertical recovery mechanism 2 further includes a driving pulley A 24, a driven pulley A 25, and a transmission belt A 26; the output shaft of the motor A 23 is coaxially and fixedly connected to the driving pulley A 24; the driving pulley A 24 is connected to the driven pulley A 25 through the transmission belt A 26; the driven pulley A 25 is coaxially and fixedly connected to the vertical auger 22; the motor A 23 outputs torque to drive the driving pulley A 24 and the driven pulley A 25 to rotate; the driven pulley A 25 drives the vertical auger 22 to rotate.

[0035] The circulating powder feeding system further includes a PVC steel wire hose 9; the PVC steel wire hose 9 connects the horizontal pipe 212 and the powder feeding pipe 5 to compensate for the position error between the horizontal pipe 212 and the powder feeding pipe 5.

[0036] A centrifugal impeller is coaxially and fixedly connected to the upper end of the vertical auger 22; the centrifugal impeller includes a plurality of blades 221 distributed in a circumferential manner; the blades 221 are arranged radially along the vertical auger 22; when the vertical auger 22 rotates, the centrifugal impeller also rotates; the rotating centrifugal impeller throws the printing powder lifted to the top of the vertical auger 22 into the horizontal pipe 212 for the conveyance of the powder feeding auger 4. In this embodiment, the number of the blades 221 is 3.

[0037] The horizontal recycling mechanism includes a recycling trough 11, a horizontal auger 12, and a motor B 13 that drives the horizontal auger 12; the horizontal auger 12 is horizontally arranged at the bottom of the recycling trough 11; the motor B 13 outputs torque to drive the horizontal auger 12 to rotate; the recycling trough 11 is used to receive the printing powder that falls to the bottom of the powder shaking box; the rotating horizontal auger 12 conveys this printing powder to the temporary storage box.

[0038] The horizontal recycling mechanism further includes a horizontally arranged U-shaped seat 14, a sealing bearing A 15, and a sealing bearing B 16; the motor B 13 is installed at the left end of the recycling trough 11; the right end of the horizontal auger 12 passes through the right end of the recycling trough 11; the U-shaped seat 14 is horizontally installed at the right end of the recycling trough 11; the sealing bearing A 15 is installed at the left end of the recycling trough 11 and is rotatably connected to the horizontal auger 12; the sealing bearing B 16 is installed at the closed end of the U-shaped seat 14 and is rotatably connected to the horizontal auger 12; the sealing bearing A 15 and the sealing bearing B 16 ensure the sealing of the rotation of the horizontal auger 12 and also reduce the resistance suffered by the rotation of the horizontal auger 12; the U-shaped seat 14 enables the printing powder to be directly conveyed by the horizontal auger 12 into the temporary storage box at the right end.

[0039] The powder inlet 211 is directly opposite to the right end of the recycling trough 11; a slope 31 that connects the powder inlet 211 and the right end of the recycling trough 11 is provided inside the temporary storage box; the printing powder that enters the temporary storage box automatically enters the powder inlet 211 along the slope 31.

[0040] The horizontal recycling mechanism further includes a driving pulley B 17, a driven pulley B 18, and a transmission belt B 19; the output shaft of the motor B 13 is coaxially and fixedly connected to the driving pulley B 17; the driving pulley B 17 is connected to the driven pulley B 18 through the transmission belt B 19; the driven pulley B 18 is coaxially and fixedly connected to the horizontal auger 12; the motor B 13 outputs torque to drive the driving pulley B 17 and the driven pulley B 18 to rotate; the driven pulley B 18 drives the horizontal auger 12 to rotate.

[0041] The working principle of this embodiment: In the present utility model, the edge of the powder inlet 51 is arranged on the edge of the powder feeding pipe 5, so that the printing powder conveyed by the powder feeding auger 4 can fall to the midpoint position of the powder distributing box; the printing powder that enters the powder distributing box piles up and gradually spreads to the left and right sides, achieving the purpose of uniform powder distribution; when the vertical auger 22 rotates, the centrifugal blades also rotate; when the centrifugal blades rotate, the printing powder lifted to the top of the vertical auger 22 is thrown into the horizontal pipe 212 for the conveyance of the powder feeding auger 4.

[0042] Embodiment 2: Embodiment 2 is basically the same as Embodiment 1, and the same parts will not be described again. The differences are as follows: The temporary storage box includes a side-opening shell 32 and a main shell 33; the side-opening shell 32 is provided with a folded edge 321; the side-opening shell 32 is buckled on the side of the main shell 33 through the folded edge 321 and is connected to the main shell 33 by screws; the temporary storage box is a side-opening structure; by opening the side-opening shell 32, the inside of the temporary storage box can be repaired.

[0043] The powder inlet 211 has a gate-shaped structure to facilitate the printing powder to enter the vertical pipe 21.

[0044] A chamfer 2211 is provided at the lower edge of the outer end of the blade 221, which can avoid powder jamming and ensure the continuous rotation of the blade 221.

Claims

1. A circulating powder feeding system, comprising a horizontal recovery mechanism, a vertical recovery mechanism and a temporary storage box; the horizontal recovery mechanism is horizontally inserted into the temporary storage box; the vertical recovery mechanism is vertically inserted into the bottom of the temporary storage box; characterized in that: The circulating powder loading system also includes a horizontal powder loading auger, a powder loading pipe, and a powder loading motor; the powder loading motor is installed on the left side of the powder distribution box and is connected to the powder loading auger drive; the powder loading pipe is fixedly connected to the powder distribution box horizontally and is mounted outside the powder loading auger; a powder inlet is provided at the bottom of the powder loading pipe and extends to the left from the midpoint of the powder loading pipe.

2. The circulating powdering system according to claim 1 is characterized in that: The vertical recovery mechanism includes a vertical pipe, a vertical auger cooperating with the vertical pipe, and an electric motor driving the vertical auger; the lower end of the vertical pipe is inserted into the temporary storage box and is sealed and rotatably connected to the bottom of the temporary storage box; the lower end of the vertical pipe is provided with a powder inlet cooperating with the horizontal recovery mechanism.

3. The circulating powdering system according to claim 2 is characterized in that: The upper end of the vertical pipe is connected to the pipe with a transverse pipe; the transverse pipe is connected to the powder supply pipe; the right end of the powder supply auger exceeds the end of the powder supply pipe and enters the transverse pipe.

4. The circulating powdering system according to claim 2 or 3, characterized in that: A centrifugal blade is coaxially fixedly connected to the upper end of the vertical auger; the centrifugal blade comprises a plurality of blades distributed circumferentially; and the blade is arranged along the radial direction of the vertical auger.

5. The circulating powdering system according to claim 1 or 2, characterized in that: The transverse recovery mechanism comprises a recovery tank body, a transverse auger, and a motor B for driving the transverse auger; the transverse auger is transversely arranged at the bottom of the recovery tank body.

6. The circulating powdering system according to claim 5 is characterized in that: The transverse recovery mechanism also includes a horizontally arranged U-shaped seat, a sealed bearing A, and a sealed bearing B; motor B is installed at the left end of the recovery trough; the right end of the transverse auger passes through the right end of the recovery trough; the U-shaped seat is horizontally installed at the right end of the recovery trough; sealed bearing A is installed at the left end of the recovery trough and is rotatably connected to the transverse auger; sealed bearing B is installed at the closed end of the U-shaped seat and is rotatably connected to the transverse auger.

7. The circulating powdering system according to claim 6, characterized in that: The powder inlet is directly opposite to the right end of the recovery tank body; a slope connecting the powder inlet and the right end of the recovery tank body is arranged inside the temporary storage box.

8. The circulating powdering system according to claim 1 is characterized in that: The temporary storage box comprises a side opening shell and a main shell; the side opening shell is provided with a folding edge; the side opening shell is installed on the side of the main shell through the folding edge buckle and connected with the main shell through screws.

9. The circulating powdering system according to claim 2, characterized in that: The powder inlet is a door-shaped structure.

10. The circulating powdering system according to claim 4, characterized in that: The lower edge of the outer end of the blade is chamfered.

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